Word: cyclotronic
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Atom-smashing machines-once the mysterious toys of theoretical physicists-have recently been put to everyday metallurgical chores: > In assaying ores, Geologists at M.I.T. have announced that when a sample of rock is bombarded with neutrons (heavy nuclear particles) from the cyclotron, some elements in the ore become radioactive and give off particles which can be detected either 1) on a photographic film in contact with the ore, or 2) with a Geiger counter, an instrument which clicks or marks a tape as each particle shoots through it. Since each element has a unique rate of radioactive decay (e.g., radioactivity...
...electron-hurling machine, weightiest contribution to atomic physics since the cyclotron was invented in 1931, was unveiled before science and the world last week. It can hurl electrons-particles of negative electricity-at nearly the speed of light. It can produce 20,000,000-volt X-rays, some ten times more than the world's biggest X-ray machine. It can out-radiate all the extracted radium supplies on earth-and its further abilities have scarcely been explored. While U.S. scientists speculated upon the discoveries the device might lead to, they welcomed to their front ranks its brilliant young...
...starting work on a giant 100,000,000-volt model, Kerst is shipping his betatron to his laboratory in Illinois to see what discoveries he can make with it. Its electron beams have already penetrated inch-thick aluminum, made copper radioactive. Its medical applications, like those of the cyclotron which once struck the bewildered public as a useless device, must be explored. In time the betatron may be able to produce earthborn artificial cosmic rays, whose fantastic energies - hundreds of millions of volts - now smite the earth mysteriously from among the stars...
...Institute. The old way of finding out where the bacteria went was either by 1) microscopic postmortem examination of tissues or 2) test-tube culture of tissue samples until bacteria appeared in obvious numbers. But hereafter scientists need only feed the bacteria on elements made mildly radioactive in a cyclotron (TIME, June 23), then can trace them through the animal body by the particles of subatomic radiation which they give...
...Cyclotron for Cancer. Winner of the Society's gold medal was Dr. John Hundale Lawrence of Berkeley, Calif., brother of Nobelman Ernest Orlando Lawrence, who splits atoms with a giant cyclotron. Brother John said last week that cyclotron bombardment can give any element the emanating qualities of radium. These radioactive elements, when swallowed in liquid form, have two great uses for medicine: 1) in minuscule amounts, they settle in specific organs for a brief time, then can be traced in their journey through the body, providing a clue to the process of growth and repair; 2) in larger doses...